Teaching goals 教学目标
1. Target language 目标语言
a. 重点词汇和短语
used to, in the area of, be proud of, be supposed to, facility, crucible, balance, tongs, react, stage, mixture, set up
b. 重点句式
The hotter the mixture, the quicker the reaction. P94
Continue to heat the mixture until the water evaporates, leaving the salt in the crucible. P94
Using tongs to hold the test tube, he heated it over the Bunsen burner. P94
